Woven Roof Valley Installation

To achieve a woven valley installation a roofing professional lays shingles in the valley and weaves them together.

Woven roof valley installation. Pros of woven valley shingle installations. In this video i show you how i do the valleys on a shingle roof. Valleys are typically found where gable dormer roofs meet the main roof or when a house has angled wings or additions where two roof sections in different planes meet. Many roofers cut the shingles across because they say it s safer.

But if the shingles are not laid properly in the valley a woven valley may not lay flat creating bumps and detracting from the overall look of the roof. The valley area of a roof the straight lines formed when two different planes of the roof meet is a critical area that handles a tremendous amount of water run off. No one of this affirmat. It is a method where the valley is completed by overlapping and weaving the shingle courses rather than cutting the shingles back to form a trough lined with a sheet metal flashing see figure wv 1.

Woven valleys should only be used with strip shingles. This system is acceptable with three tab and low profile architectural shingles and valley slopes greater than 4 12 18 degrees. Here we have a laminated shingle roof that has been installed with a woven valley detail. A closed cut asphalt shingle roof valley starts the same way as a woven valley with the first course of shingles run across the valley from both roof planes lapping the shingle from the larger or steeper roof plane over the shingle from the smaller shallower plane.

All of the shingle rows will need to be lined up correctly. To achieve a woven valley installation a roofing professional lays shingles in the valley and weaves them together. Water has a small chance of even getting up under the woven valley shingles even though it flows in either direction. Woven valleys woven valleys are constructed by interlacing the rows of shingles from intersecting roof planes.

Roof installation how to shingle a valley hd by roofrepair101 more about roofing at. This is an incorrect installation of this type of roofing material and will be more prone to water intrusion and will void the manufacturer s warranty for this material. Roof cement or self adhering polymer modified bitumen target patches. But if the shingles are not laid in the valley properly a woven valley may not lay flat creating bumps and detracting from the overall look of the roof.

Some homeowners prefer the consistent look that a woven valley provides.